EP0512455A3 - - Google Patents
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- Publication number
- EP0512455A3 EP0512455A3 EP19920107496 EP92107496A EP0512455A3 EP 0512455 A3 EP0512455 A3 EP 0512455A3 EP 19920107496 EP19920107496 EP 19920107496 EP 92107496 A EP92107496 A EP 92107496A EP 0512455 A3 EP0512455 A3 EP 0512455A3
- Authority
- EP
- European Patent Office
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4114650A DE4114650A1 (de) | 1991-05-05 | 1991-05-05 | Verfahren und vorrichtung zur messung von volumenstroemen in fluessigkeiten und gasen |
| DE4114650 | 1991-05-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0512455A2 EP0512455A2 (de) | 1992-11-11 |
| EP0512455A3 true EP0512455A3 (US07709020-20100504-C00041.png) | 1994-04-27 |
Family
ID=6431023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92107496A Withdrawn EP0512455A2 (de) | 1991-05-05 | 1992-05-04 | Verfahren und Vorrichtung zur Messung von Volumenströmen in Flüssigkeiten und Gasen |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5325726A (US07709020-20100504-C00041.png) |
| EP (1) | EP0512455A2 (US07709020-20100504-C00041.png) |
| DE (1) | DE4114650A1 (US07709020-20100504-C00041.png) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672238B1 (de) * | 1992-02-13 | 1997-01-15 | Siemens Aktiengesellschaft | Trichtereinlass und -auslass für ultraschall-gaszähler |
| HUT73364A (en) * | 1993-01-30 | 1996-07-29 | Kromschroeder Ag G | Fluid flow meter |
| EP0712486B1 (en) * | 1993-08-02 | 1998-09-23 | G. Kromschröder Aktiengesellschaft | Improvements relating to fluid flow monitoring |
| US5668326A (en) * | 1996-10-04 | 1997-09-16 | Dieterich Technology Holding Corp. | Method and apparatus for detecting and aligning a signal |
| DE19912587A1 (de) * | 1999-03-20 | 2000-09-21 | Ksb Ag | Volumenstrommeßgerät |
| DE10311878A1 (de) * | 2003-03-17 | 2004-09-30 | Endress + Hauser Flowtec Ag, Reinach | Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massendurchflusses eines Mediums |
| DE102005001895B4 (de) * | 2005-01-14 | 2007-09-06 | Landis+Gyr Gmbh | Vorrichtung zur Durchflussmessung |
| DE102009028847A1 (de) | 2009-06-12 | 2010-12-16 | Endress + Hauser Flowtec Ag | Messgerät und Verfahren zum Messen einer Messgröße |
| US7966893B2 (en) * | 2009-06-16 | 2011-06-28 | Daniel Measurement And Control, Inc. | Adjusting transducer frequency without ceasing fluid flow through a meter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2517117A1 (de) * | 1975-04-18 | 1976-10-28 | Standard Elektrik Lorenz Ag | Anordnung zum bestimmen der stroemungsgeschwindigkeit von fluessigkeiten und gasen |
| GB2080530A (en) * | 1980-07-18 | 1982-02-03 | Smyshlyaev Vladimir Viktorovic | Method of and Apparatus for Ultrasonic Measurement of Rate of Flow |
| WO1990005283A1 (en) * | 1988-10-31 | 1990-05-17 | Jerker Delsing | Method and apparatus for measuring mass flow |
| EP0392294A1 (de) * | 1989-04-13 | 1990-10-17 | Siemens Aktiengesellschaft | Durchflussmesseinrichtung für flüssige Medien nach dem Ultraschall-Laufzeitprizip |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209591A (en) * | 1962-08-17 | 1965-10-05 | Westinghouse Electric Corp | Acoustic flow meter |
| US3336801A (en) * | 1964-09-21 | 1967-08-22 | Benjamin L Snavely | Apparatus for measuring water flow velocity |
| US4052896A (en) * | 1975-11-26 | 1977-10-11 | Badger Meter, Inc. | Ultrasonic flow meter |
| US4555951A (en) * | 1984-08-23 | 1985-12-03 | General Motors Corporation | Reflective acoustic fluid flow meter |
| US4616510A (en) * | 1985-04-15 | 1986-10-14 | Moore Products Company | Fluid velocity measuring method and apparatus |
| JP2556701B2 (ja) * | 1987-05-18 | 1996-11-20 | グラム株式会社 | 限外濾過量及び透析液濃度測定装置 |
| US5035147A (en) * | 1990-02-09 | 1991-07-30 | Curtin Matheson Scientific, Inc. | Method and system for digital measurement of acoustic burst travel time in a fluid medium |
-
1991
- 1991-05-05 DE DE4114650A patent/DE4114650A1/de not_active Withdrawn
-
1992
- 1992-05-04 EP EP92107496A patent/EP0512455A2/de not_active Withdrawn
- 1992-05-05 US US07/878,491 patent/US5325726A/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2517117A1 (de) * | 1975-04-18 | 1976-10-28 | Standard Elektrik Lorenz Ag | Anordnung zum bestimmen der stroemungsgeschwindigkeit von fluessigkeiten und gasen |
| GB2080530A (en) * | 1980-07-18 | 1982-02-03 | Smyshlyaev Vladimir Viktorovic | Method of and Apparatus for Ultrasonic Measurement of Rate of Flow |
| WO1990005283A1 (en) * | 1988-10-31 | 1990-05-17 | Jerker Delsing | Method and apparatus for measuring mass flow |
| EP0392294A1 (de) * | 1989-04-13 | 1990-10-17 | Siemens Aktiengesellschaft | Durchflussmesseinrichtung für flüssige Medien nach dem Ultraschall-Laufzeitprizip |
Also Published As
| Publication number | Publication date |
|---|---|
| US5325726A (en) | 1994-07-05 |
| DE4114650A1 (de) | 1992-11-12 |
| EP0512455A2 (de) | 1992-11-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE |
|
| 17P | Request for examination filed |
Effective date: 19941006 |
|
| 17Q | First examination report despatched |
Effective date: 19970304 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19970715 |